baber/WOPTO huggingface dataset:
Patent JO-3741-B1 (JO)
Title: Systems and methods for non-obstacle area detection
Inventor: VASUDEV BHASKARAN
IPC: G06K9/00
Filed: 2016-08-07
Granted: 2021-01-31
Abstract: A method performed by an electronic device is described. The method includes performing vertical processing of a depth map to determine a vertical non-obstacle estimation. The method also includes performing horizontal processing of the depth map to determine a horizontal non-obstacle estimation. The method further includes combining the vertical non-obstacle estimation and the horizontal non-obstacle estimation. The method additionally includes generating a non-obstacle map based on the combination of the vertical and horizontal non-obstacle estimations.
Patent KR-790000969-B1 (KR)
Title: Air-tire
Inventor: NISI DAKUZI
Filed: 1974-12-07
Granted: 1979-08-14
Abstract: A penumatic tire which could control or prevent the growth of cracks in the tread groove was described. Many slots(20) at right angles to the groove length were placed at the bottom(19) of the groove to prevent the transmission of stress. The slot depth was between 1mm and 4/5 of the distance from the bottom of groove (18a-18d) to the upper part of a breaker. (16). The pitch of the slot was 5-20mm.
Patent KR-790000577-B1 (KR)
Title: Method of preparing quaternary ammonium salts of n-dialkyl aminoalkyl-n-(2-indianyl)anilines
Inventor: BRYAN BARNET MOLLOY
Filed: 1975-04-11
Granted: 1979-06-06
Abstract: Title compds. (I; R1, R2 = C1-C4 alky1, bonded nitrogen containing-pyrollidino, piperidino, morphorino, R3 = H, C1-C3 akly1, C2- C5  alkeny1, R4 = H, Me, methoxy, CF3, C1, X= anion, n = 2, 3 integer), useful for treating heart arrhythmia, were prepd. by reaction of II with alkylation agent when Z was -n<R1 R2 or with tert. amine when Z was halogen to give I.
Patent KR-820002011-B1 (KR)
Title: Process for the preparation of reactive azo dyestuffs
Inventor: JAEGER H
IPC: C09B62/08
Filed: 1979-08-27
Granted: 1982-10-24
Abstract: Title dyes I(R=H or C1-4 alkyl; Z=F or optionally substituted NH2, OH, SH or hydrocarbyl; A=residue of coupling component) were manufactured and used to dye or print wool, silk, polyamide, polyurethane or cellulosic fibers in shades of good wash fastness.  The mixt. of 17.3g m-sulfamilic acid and 13.5g 2,4,6-trifluoro-1,3,5-triazine was reacted with 69g II to give III.
Patent KR-810000239-B1 (KR)
Title: Servo motor for remote controler
Inventor: JO NAM SUN
IPC: H04Q1/00
Filed: 1979-09-28
Granted: 1981-03-23
Abstract: This servo motor consists of braking devices(1,1'), pressure pins(2,2'), permanent magnets(3,3'), and other springs (4,4').  The sawtooth-shaped wheel is rotated corresponding to the number of turns and the direction of current flowing through a coil, and the rotation angle and direction is controlled with ease.
Patent KR-830002490-B1 (KR)
Title: 장거리용 스포츠화의 창
IPC: A43B13/18
Filed: 1980-02-18
Granted: 1983-10-27
Abstract: 내용 없음.
Patent KR-830000070-B1 (KR)
Title: 습식 좌착식 수세변기
IPC: E03D1/00
Filed: 1981-01-20
Granted: 1983-02-05
Abstract: 내용 없음.
Patent KR-840001443-B1 (KR)
Title: Hydrostatic bearring with rotating sleeve
Inventor: DREVET MICHEL P
IPC: F16C17/14
Filed: 1981-07-02
Granted: 1984-09-27
Abstract: A rotating shaft(1), which runs in a plain oil lubricated journal bearing, has a loose sleeve(5) fitted between it and the bearing support. The shaft has oilways(6,8) that supply oil to the inner surface and to one end face of the sleeve(5). The bearing support also has oilways(7, 9, 14, 15) that supply oil to the outer surface and to the opposite end of the sleeve. When the shaft(1) rotates, it exerts a viscous shearing force on the oil, which in trun causes the cylindrical sleeve to rotate but at a slower speed. The shaft and sleeve may have interposed gearing which drives the sleeve at half-shaft speed.
Patent KR-880001043-B1 (KR)
Title: Single dispensing multiple suture package
Inventor: BATCHELOR JAY A
IPC: A61L17/00
Filed: 1982-05-08
Granted: 1988-06-18
Abstract: The structure dispenser has a centre panel (1) to which is fixed a foam receptacle (2) or a pair of receptacles in tandem.  A set of cards (3) or an accordion folded continuous sheet is placed on the panel adjacent the receptacle.  A flap (4) is placed on the cards and is fixed to the panel by a tab.  A second flap is foldably attached to the panel and is placed over both the receptacles and the first flap.  The foam receptacles contain suture mounting slits into which at least one end of each suture is inserted.  The remainder sutures lie between the cards and are held in place by self-adhesive strips.
Patent KR-870001118-B1 (KR)
Title: Method and apparatus for recovering from a selected track on a record disc
Inventor: GIDINGS GARY M
IPC: G11B21/08
Filed: 1982-10-27
Granted: 1987-06-08
Abstract: The system uses a read-out beam, moving radially relative to the surface of a rotating disc, to impinge on a selected target track. The beam is initially displaced at a relatively high speed to a point adjacent the required track.  After which it is incrementally displaced across a given number of tracks during each full revolution of the disc.  Each information track carries an associated address signal, the incremented displacement of the read-out beam is controlled by the difference between the address of the scanned track and the address of the target track.
Patent KR-890000177-B1 (KR)
Title: Process for the preparation of oxabicyclo alkane derivatives
Inventor: PAYNE GEORGE B
IPC: C07C45/51
Filed: 1982-12-10
Granted: 1989-03-09
Abstract: An oxabicycloalkane derivs of formula (I), useful as selective herbicides, are prepd. by reacting a substd. oxabicycloalkanol of formula (II) with a compd. of formula WCQ2L.  In the formulas, X is (-CR4R4-)m [m=0 or 1!; Y is (-CR5R6-)n [n=0, 1 or 2 ; Z is (-CR7R7)p [p=1,2 or3 ; R1 and R2 are each H or C1-6 alkyl; R3 is H, CN, substd. alkyl or acetal deriv.; R4 is H, C1-6 alkyl, hydroxy or C1-4 alkoxy; R5 and R6 are each H or C1-2 alkyl; R7  is H or C1-4 alkyl; Q is H or F; W is alkenyl, alkynyl, opt. substd. aromatic or heterocyclic gp., cycloalkyl, cyclohexenyl, CN or sec. alkyl.
Patent KR-890000091-B1 (KR)
Title: A centerless flexible
Inventor: RANDE STEVE ALBERT
IPC: B24B5/22
Filed: 1983-03-09
Granted: 1989-03-07
Abstract: Centreless honer or grinder has at least three separate parallel rollers with their shafts arranged as a triangle to take the workpiece; at least one of the rollers is driven.  At least one roller hones/grinds with at least one grinding system containing a base material to which finely divided grinding particles are firmly bonded.  The machine produces a smooth finish free from peaks and troughs.
Patent KR-920002620-B1 (KR)
Inventor: SANO YASUO
IPC: C08L77/12
Filed: 1983-06-28
Granted: 1992-03-30
Abstract: 내용 없음.
Patent KR-890001113-B1 (KR)
Title: Method of reducing nox and sox emission
Inventor: WINSHIP RALPH D
IPC: F23C6/04
Filed: 1983-08-02
Granted: 1989-04-24
Abstract: A method of operating a furnace for minimizing the formation of NOx and SOx in combustion gases comprises (a) conveying a pulverized coal in an air stream towards the furnace, and (b) separating the stream into a fuel rich portion and a fuel lean portion.  The fuel rich portion is introduced into the furnace in a first zone.  The fuel lean portion is introduced into a second zone in a quantity such that there is excess air over that required for combustion of all of the fuel within the furnace.
Patent KR-910000005-B1 (KR)
Title: Cooling apparatus forf use in conjunction with a charging device for a shaft furnace
Inventor: REGEU EDOO R
IPC: C21B7/20
Filed: 1983-12-09
Granted: 1991-01-19
Abstract: A water cooling apparatus is presented for use in conjunction with a charging device of a shaft furnace, particularly a shaft furnace having a bell-less top charging apparatus. The cooling apparatus essentially comprises an annular feed vat which is attached to the upper portion of a rotary shell and is movable with the rotary shell. The vat is provided with at least one opening whereby water is gravity fed from the vat through plural cooling coils positioned about a rotary jacket. An annular collecting conduit receives the water flowing from the coils. The rotary jacket supports the suspension mechanism of a distribution spout and also acts as the separating structure between the furnace interior and the component parts of the charging device.
Patent KR-920004307-B1 (KR)
Inventor: DOANE JOHN C
IPC: B66B5/00
Filed: 1984-03-10
Granted: 1992-06-01
Abstract: 내용 없음.
Patent KR-890000004-B1 (KR)
Title: Exercise assembly for legs
Inventor: CHENERA ROBERT
IPC: A63B23/02
Filed: 1984-03-16
Granted: 1989-03-02
Abstract: The exercise frame comprises; an elongated base support with a body support assembly including a centre support beam longitudinally disposed on the enlongated base support.  A first side platform has a first end portion hinged to the centre support along a first longitudinal axis, the first side platform has a length sufficient to permit a second end portion of the first side platform to extend down and engage a foundation surface.  Screw jacks allow lowering and raising the body support between a first vertical position and a second vertical position below the first vertical position.
Patent KR-870000960-B1 (KR)
Title: Process for preparing 4- r'-5-q-1,6-naphthyridin-2(1h)-ones
Inventor: LESHER GEORGE Y
IPC: C07D471/04
Filed: 1984-08-07
Granted: 1987-05-14
Abstract: Title cpds. of formula (I) and (II) [R1=H or Me; Q=CH2OH, 1- hydroxyethyl, alkanoyloxymethyl or 1-alkanoyloxyethyl; Q1=Me or Et  and their acid-addn. salts are prepd. Thus, a mixt. of 38.2g 5- methyl-1,6-naphthyridin-2(1H)-one-6-oxide and 300ml Ac2O  is refluxed with stirring on a steam bath for 48hr to give 5-[(acethyloxy) methyl -1,6-naphthyridin-2(1H)-one, which is recrystallized with DMFA and dried to give 10.5g I.HCl(θ =CH2OAc, R1=H). compd. (I) are useful as cardiotonic agents.
Patent KR-870001174-B1 (KR)
Title: Diaphragm spring supporting device of clutch cover assembly
Inventor: FUKATANI YASUNOBU
IPC: F16D13/71
Filed: 1985-01-11
Granted: 1987-06-16
Abstract: The clutch cover especially designed for motor vehicle has a series of shutters which pass thorugh a slot in a diaphram spring and are turned over to retain two rings (11, 12).  The cover has several radially, inward-pointing projections (20) which hold a spacer ring(21) between the cover and diaphram spring.  Each of the projections is in the form of a tongue.  The spacer ring is circular with one cut-away section and is made from spring steel or a resilient resin compound.
Patent KR-880000553-B1 (KR)
Title: Direct data communication device
Inventor: PARK SUNG-HYUN
IPC: H04Q3/52
Filed: 1985-06-13
Granted: 1988-04-13
Abstract: In order to eliminate the shortcomings of conventional data communication system the separate device such as modem or data module is not used in this invention.  Instead the several RS-232C type data terminals (11a, 11b, ...) such as computer, personal computer, CRT terminal printer and teleprintwriter etc. are connected to the electronic switching system.  And so the data communication subscribers can communicated with each other by calling the other directly using the character plate of the data terminal. As this invention does not require the modem and module, the subscribers can reduce the economical burden.
Patent KR-900001757-B1 (KR)
Title: Hydromechanical transmission
Inventor: KITA YASUO
IPC: F16H47/04
Filed: 1985-11-11
Granted: 1990-03-19
Abstract: A hydromechanical transmission comprises a differential mechanism (4) having first, second, and third input-output ends (1,2,3), a hydraulic power transmission mechanism (8) comprising a pair of hydraulic pump-motors (5,7), a first low-speed clutch (21), and a second high-speed clutch (23) which is engaged when the first clutch is disengaged and conversely for selecting either a low-speed mode or a high-speed mode.  The transmission further comprises a speed detection means (24) for detecting the rotational speeds at the transmission output ends (18,22), a torque detection means (25) for detecting the torgue detection means (25) for detecting the torque transmission at the output ends, and a control means (26) for engaging the clutches.
Patent KR-910003333-B1 (KR)
Inventor: STUETZU ANTON
IPC: C07C211/23
Filed: 1985-12-05
Granted: 1991-05-27
Abstract: 내용 없음.
Patent KR-940008910-B1 (KR)
Title: Interlace to non-interlace scan converter for rgb format video input signals
Inventor: WILLIS DONALD H
IPC: H04N5/44
Filed: 1986-04-29
Granted: 1994-09-28
Abstract: A speed-up memory converts interlaced RGB input signals to double line-rate (progressive scan) form. A vertical detail signal is derived from the RGB input signals before or after speed-up and a vertical peaking signal is derived from the detail signal. During the first read operation of the speed-up memory both signals are added to the speeded-up signals to effect a preshoot of the resultant signal and during the second speed-up memory read operation only the peaking signal added to affect an overshoot of the resultant signals whereby alternate lines of the converted RGB signals exhibit enhanced vertical detail.
Patent KR-900006045-B1 (KR)
Title: The wave from shaping circuitry
Inventor: MIYASAWA MASAYAKI
IPC: H03K5/1254
Filed: 1986-09-23
Granted: 1990-08-20
Abstract: A signal transformer for a switching signal for operating a digital integrated circuit (10) such as a microcomputer, in a motor vehicle, uses a resistor (3) in series between the supply and the switch (101) to produce the signal. The signal is fed via a low-pass filter (102) to the circuit (10) and a voltage limiter (103) restricts the voltage fed to the circuit (10) to the operating voltage. The limiter (103) includes a diode (6) whose anode is coupled to the signal voltage and whose cathode is connected to the operating voltage (SV) of the integrated circuit (10). There may be a Zener diode (11) whose anode is to the earth and whose cathode is to the signal voltage, the Zener voltage lying close to the integrated circuit operating voltage. A voltage divides (8,9) may be immediately in front of the integrated circuit (10).
Patent KR-920001599-B1 (KR)
Inventor: OLESEN PAUL
IPC: B25C5/02
Filed: 1986-09-30
Granted: 1992-02-20
Abstract: 내용 없음.
Patent KR-900002390-B1 (KR)
Title: Composite material for induction heating
Inventor: HUNTER JAMES R
IPC: H05B6/12
Filed: 1986-10-11
Granted: 1990-04-13
Abstract: A composite material for induction heating is produced by welding together the following layers: the first layer of 0.0040.005 inch nonmagnetic austenite stainless steel (T-304), the second layer of 0.0045-0.005 inch magnetic ferrite stainless steel (T-409), the third layer of 0.004-0.005 inch nonmagnetic austenite stainless steel (T- 304), the 4th layer of max. 0.2 inch aluminium 3003 or 3004, the 5th layer of nonmagetic austenite stainless steel.
Patent KR-910000287-B1 (KR)
Inventor: SAESANO FRANCO
IPC: B29C33/02
Filed: 1986-11-14
Granted: 1991-01-24
Abstract: 내용 없음.
Patent KR-900004376-B1 (KR)
Title: Level stabilizing circuit
Inventor: KIM JONG-KUK
IPC: H04N5/268
Filed: 1986-12-26
Granted: 1990-06-23
Abstract: The circuit includes a coaxial input circuit (2) for reducing noise from the shield line, a differential amplifier (4) for amplifying divided output signal of a buffer (4) so that level drop caused by dividing signal is prevented, an output unit (5) for preventing instantaneous output variation of the differential amplifier, and a low pass filter (6) for feeding luminance signal back to an input unit (1) so that branching level is stabilized.
Patent KR-950004116-B1 (KR)
Title: Video signal processing system
Inventor: BALABAN ALVIN R
IPC: H04N9/45
Filed: 1987-05-01
Granted: 1995-04-25
Abstract: In the described embodiment of the invention, a digital television receiver, having a line locked clock (CK), includes a first digital phase locked loop (232-252) which regenerates quadrature phase related subcarrier signals that are used to synchronously demodulate (232, 234) the chrominance signal components of composite video signals into color information signals. When nonstandard video signals (e.g., from a video tape recorder) are processed by the receiver, frequency instabilities in the line locked clock signal may cause the colour information signals to be distorted. To compensate for this distortion, a second phase locked loop (300) is synchronized to a reference signal generated by an analog oscillator (310). The analog reference signal is linearly added (314) to baseband analog video signals. The combined signals are digitized by an analog-to-digital converter (211) and then filtered by parallel low-pass and band-pass filters (301, 304) to develop digital signals representing the video signals and the reference signal, respectively. The digital reference signal is used to synchoronize the second phase locked loop (300), the control signals of which (from 320) are used to compensate (328) the first phase locked loop (232-252) for frequency instabilities in the clock signal. More generally, the invention envisages the use of a single analog-to-digital converter for digitizing combined analog signals (e.g. video and auxiliary signals) which occupy different frequency bands, the digitized signals being separated by filtering before being supplied to respective utilization or processing circuits.
Patent KR-940010219-B1 (KR)
Inventor: HARA YASUAKI
IPC: C08J7/046
Filed: 1987-07-20
Granted: 1994-10-22
Abstract: 내용 없음.
Patent KR-920010540-B1 (KR)
Inventor: SHIGEDA KATSUMI
IPC: D06H7/02
Filed: 1987-09-04
Granted: 1992-12-05
Abstract: 내용 없음.
Patent KR-900003328-B1 (KR)
Title: Polyamide fiber or film,that's process of manufacture and apparatus
Inventor: JI CHANG-SEOP
IPC: D01F6/90
Filed: 1987-10-15
Granted: 1990-05-14
Abstract: The fiber or film of wholy aromatic polyamide is prepd. by: preparing a liquid crystal prepolymer soln. having 1.8-3.8 inherent viscosity by low-temp. polymn. of aromatic diamine with di-acid chloride of same mole ratio in amide polymn. solvent contg. inorg salts; wet- spinning the prepolymer with polymn. accelerating solvent conprising t-amine based solvents or a mixd. solvent of t-amine based solvent and amide based solvent by using spinning nozzle or die; and, stretching and orienting by passing through molecular orienting rollers which have different linear velocities and are established horizontally; then, washing, drying and continuously winding.
Patent KR-910009847-B1 (KR)
Inventor: OKAMURA TAKUMI
IPC: G11B20/10
Filed: 1987-11-18
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-910007031-B1 (KR)
Inventor: BILLINGS ROBERT L
IPC: H02J17/00
Filed: 1987-03-10
Granted: 1991-09-16
Abstract: 내용 없음.
Patent KR-900008952-B1 (KR)
Title: Sub-lance installation
Inventor: JOHNBELT PETRUS C
IPC: G01K13/12
Filed: 1988-02-15
Granted: 1990-12-15
Abstract: The sub-lance installation for carrying out measurements and/or taking samples in a metallurgical furnace has an elongated tubular lance (3) which is rotatable around its longitudinal axis. For rotating the lance (3) comprises a helical guide system which imparts rotation to the lance. The helical guide system comprises mutually cooperating helical projections (13) and recesses (15) mounted respectively on the lance (3) and a guide (14) for the lance.
Patent KR-930011782-B1 (KR)
Title: Novel azoxy compounds and process for production thereof
Inventor: NAKAYAMA MASAHITO
IPC: A61K31/655
Filed: 1988-03-28
Granted: 1993-12-21
Abstract: Novel azoxy compounds having antifungal activity and being useful for therapy of mycoses, represented by the following formula <CHEM>    wherein X is - @- or -@@-. are prepared by culturing a microorganism of Streptomyces sp. (KC-7367, FERM BP-1277) and separating the compounds from the culture broth.
Patent KR-920004097-B1 (KR)
Title: Doxorubicin hydrochloride aqueous solutions
Inventor: KAPLAN MURRAY A
IPC: A61K47/08
Filed: 1988-07-15
Granted: 1992-05-25
Abstract: Stable ready-to-use aqueous solutions of doxorubicin HCl are provided containing doxorubicin HCl, citric acid, an antioxidant selected from alpha -tocopherol (Vitamin E), sodium formaldehyde bisulfite and tert-butylhydroquinone, and water. The solutions have an acceptable shelf-life of greater than two years at 4 DEG C.
Patent KR-920000637-B1 (KR)
Title: Manufacturing method of mosfet its devices
Inventor: CHONG IN-SUL
IPC: H01L29/78
Filed: 1988-11-28
Granted: 1992-01-17
Abstract: The method for forming a silicone spacer ona  gate  electrode portion to elongate the length of the gate electrode comprises the steps of forming the poly silicon spacer (6) on both sides of  the gate electrode (5) to enlarge the width of the gate electrode (5), and forming an oxide film spacer (4) on the spacer (6) and silicon substrate (1) with an LDD. The LDD region under the gate electrode is overlapped with the poly silicon spacer partially.
Patent KR-910007328-B1 (KR)
Inventor: BHASKAR ELDURKAR V
IPC: H01S5/223
Filed: 1988-12-16
Granted: 1991-09-25
Abstract: 내용 없음.
Patent KR-910005009-B1 (KR)
Title: 세정용 수지 조성물
IPC: C08K5/01
Filed: 1989-02-27
Granted: 1991-07-20
Abstract: 내용 없음.
Patent KR-920001021-B1 (KR)
Title: Coated sheetlike laminate with a fine-grained surface and process for its production
Inventor: WALD HANNS J
IPC: D06N3/08
Filed: 1989-04-19
Granted: 1992-02-01
Abstract: A coated sheet-like laminate with a fine-grain surface consists of a nonwoven having a coating, a smooth knitted fabric or woven fabric being present between the coating and the nonwoven. Production is carried out by the reversal process on a release paper.
Patent KR-910009243-B1 (KR)
Inventor: MORIMOTO KIYOSHI
IPC: H01J1/20
Filed: 1989-05-01
Granted: 1991-11-07
Abstract: 내용 없음.
Patent KR-920004650-B1 (KR)
Inventor: KIM SANG-KUK
IPC: G06F3/153
Filed: 1989-05-13
Granted: 1992-06-12
Abstract: 내용 없음.
Patent KR-970001355-B1 (KR)
Inventor: VANDONINCK ALFONS
IPC: B65D83/14
Filed: 1989-06-29
Granted: 1997-02-05
Abstract: 내용 없음.
Patent KR-910008812-B1 (KR)
Inventor: OUTA KENZI
IPC: B32B27/00
Filed: 1989-07-06
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-940000460-B1 (KR)
Title: Recording system
Inventor: HWANG SONG-HA
IPC: H04N5/76
Filed: 1989-07-31
Granted: 1994-01-21
Abstract: The system and method includes an A/D converter for converting an NTSC composite analog signal into a digital signal, a Y/C separator for separating a luminance signal and a chrominance signal, first and second subnyquist sampling portions for compressing the transmission amount of the luminance signal and chrominance signal into half, a mixer for alternately arranging the chrominance signals output from the second subnyquist sampling portion, vector quantizers for classifying 8 data into 4 groups and two-dimensionally vector-quantizing respective groups, error correctors for adding an error correcting bit to the output of the vector quantizers, modulators for converting 8-bit data output from the error correctors into 10-bit data, a delay for delaying the chrominance signals output from the modulator, and a head drum for recording one frame of the luminance signal and chrominance signals output from the modulator.
Patent KR-920003346-B1 (KR)
Inventor: SUH SUNG-HEE
IPC: H04N1/32
Filed: 1989-08-18
Granted: 1992-04-27
Abstract: 내용 없음.
Patent KR-920005600-B1 (KR)
Title: Keyboard for remote controlling computer
Inventor: SONG JAE-HWAN
IPC: G06F3/02
Filed: 1989-08-22
Granted: 1992-07-09
Abstract: The keyboard is to control directly a computer  disposed  far away without  modem  and  to  send  keyboard  data.  The  keyboard includes a MFC tone generator (3) for generating MFC tone  signal, a MFC decoder (4)  for  decoding  the  MFC  tone  signal  and  for selecting output line to  transmit  active  signal,  an  impedance matching transformer (T) for matching impedance  of  output  stage and  transmission  lines,  and  an  analog  switch  unit  (9)  for reproducing the keyboard data transmitted from the keyboard.
Patent KR-920005308-B1 (KR)
Inventor: JENDA HIROKI
IPC: G06F3/147
Filed: 1989-09-12
Granted: 1992-07-02
Abstract: 내용 없음.